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Cystoscopys
How often is a good cystoscopy wrong?
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5 Replies
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It means that the cytology lab uses The Paris System (TPS) for Reporting Cytology. Your report says that there are not high grade papillary tumors or carcinoma in-situ. TPS no longer reports the existence of low grade tumor cells because it is difficult to distinguish low grade tumor cells from normal cells accurately, Also low grade tumors are not considered life threatening even the finding is delayed. On the other hand, TPS improved the accuracy of predicting the existence of high grade papillary tumor or carcinoma in-situ (CIS). which should be detected and treated as soon as possible.
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Oh sorry, my urine cytology came back negative for high grade urothelial carcinoma
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That does not sound like the report by cytology. The current cytology follows The Paris Systems for Reporting Cytology or TPS. TPS only reports a) Negative for High Grade Urothelial Carcinoma, b) Atypical Urothelial Cells, c) Suspicious for High Grade Urothelial Carcinoma, or d) High Grade Urothelial Carcinoma. Urine analysis cannot distinguish Carcinoma In-Situ (flat high grade tumor) from Papillary (non flat) high grade tumor as we are looking at urothelial cells ( normal or cancer) which have fallen off rom the lining of the bladder.
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It said no carcinoma in situ and no tumors
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Sometimes, cytology ( type of urine analysis) is done after cystoscopy as there is a limit in what human eyes can see in cystoscopy. I see that you had two urine analysis already. One was based by microscope. Was it cytology? What did the report say in detail? Did it say Negative for High Grade Urothelial Carcinoma?
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